Providing effective advertising via synchronized telephone and data streams

ABSTRACT

Information, such as advertising, is presented to VoIP users via a combination of telephone and data streams during session initiation via an IP phone or a personal computer. A proxy server that receives the call request coordinates with a media server to transmit targeted advertising to the caller during the post dial delay interval. After the advertisement concludes, the call continues normally.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.11/883,605, filed May 19, 2008 now U.S. Pat. No. 8,073,118, which is aU.S. National Stage of PCT Application No. PCT/IL2006/00133, filed Feb.2, 2006, which claims the benefit of Provisional Application No.60/649,889, filed Feb. 3, 2005, the contents of all of which are hereinincorporated by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to communications techniques over a data network.More particularly, this invention relates to telephonic communication inwhich information is transmitted by synchronization of voice and datastreams.

2. Description of the Related Art

TABLE 1 Acronyms and Abbreviations IETF Internet Engineering Task ForceIP Internet Protocol ITU International Telecommunication Union ITU-T ITUTelecommunication Standardization Sector PDD Post-Dial Delay PSTN PublicSwitched Telephone Network QoS Quality of Service RTSP Real TimeStreaming Protocol SIP Session Initiation Protocol SS7 Signaling System7 VoIP Voice over Internet Protocol

Voice over Internet Protocol (VoIP), also known as IP telephony, hasbecome a preferred technique for routing of voice communications overthe Internet and other data networks. Essentially, audio informationflows primarily through a packet-switched data network, instead oftraditional dedicated, circuit switched voice transmission lines. Solong as the information remains in the data network, there is littlemarginal cost involved in processing the call. However, many suchcommunications terminate in the public switched telephone network(PSTN), at which point charges may be incurred.

The popularity of VoIP has resulted in the development of many protocolsdealing with various aspects of data formatting and communications,including call models and controls. Examples include ITU-T H.323, andITU-T H.225. During the last decade, the IETF Session InitiationProtocol (SIP) has become an increasingly important signaling protocolfor VoIP communications. SIP is formally defined in RFC 3261, availableat the URL “http://www.ietf.org/rfc/rfc3261.txt”.

SUMMARY OF THE INVENTION

Merchants have lists and profiles of their customers and look for waysto target advertising toward the buying habits of these specificcustomers and give these customers incentives to buy more. One way theydo this sort of targeted advertising now is by sending coupons in themail. Offering free packet telephony service, e.g., VoIP service, is afaster and possibly cheaper way to reach these customers in a way thatwill build customer goodwill. According to disclosed embodiments of theinvention, information content, typically effective advertising, ispresented to users via telephone, or via a combination of telephone anddata streams. One embodiment of the invention employs VoIP. A userinitiates a VoIP call in a conventional manner, typically through an IPphone or a personal computer, i.e., by picking up an instrument anddialing. Such calls almost invariably require a time interval forsession initiation, known as a “post dial delay” (PDD). During the callsetup phase, an advertisement, typically originating from amerchant-operated media server, is played to the calling party. Afterthe advertisement concludes, the call continues normally.

In some embodiments multimedia communication techniques are employed toprovide additional information and to enhance effectiveness ofadvertising or other types of communications. When the telephoneinstrument is connected to a computer, or the call is made using VoIPclient software on a computer, visual information, typically a moredetailed advertisement, may be displayed on the computer's monitor. Themultimedia information is synchronized with the audio informationreceived over the telephone instrument for increased effectiveness.

One way of increasing the effectiveness of advertising while keeping itshort is to refer the user or customer to a more detailed source ofinformation. A multimedia approach can be used, where the voiceadvertisement refers the user to his computer screen where a moredetailed advertisement or coupon is waiting. Alternatively, inembodiments in which the VoIP device is not connected to a computer,pressing a key on the telephone keypad may enable the user to hear moredetails.

In any case, revenue from the advertising offsets PSTN terminationcharges and other costs of the VoIP provider, who can then reduce oreven eliminate calling charges to the end user. The end user, who is acustomer of the VoIP provider, is disposed to tolerate theadvertisements in order to avoid such charges.

In an aspect of the invention, the VoIP provider is able to obtainprofiles of its customers. The profiles can be stored in a database andmade available to advertisers, enabling them to target advertisements.The effectiveness of targeted advertising as compared with non-directedadvertising is a factor that motivates advertisers to participate withthe VoIP provider in offering VoIP service to these customers at reducedcost or at no cost to the customers.

An example of an offering that takes all these factors intoconsideration is an offering by a retail chain of free domestic VoIPphone calls to its most valued customers. Typically, such customers havea store discount card, which tracks their purchases. When a customerreaches some predetermined level of purchases, he is given a device thatconnects to his computer and to a standard telephone, thereby enablingthe customer to place VoIP calls. Conditioning continuation of the VoIPservices to an amount spent on goods, provide a strong loyalty incentiveto the retail chains.

An embodiment of the invention provides a method for targetedadvertising, which is carried out by maintaining respective profiles ofa group of individuals who are affiliated with an organization,providing the individuals with access to a packet telephony service, andreceiving a request from an individual in the group to establish atelephonic connection with a callee over a packet network using thepacket telephony service. In response to the request, the method isfurther carried out by transmitting over the packet network to theindividual a notification provided by the organization and targetedaccording to a respective profile of the individual, and completing thetelephonic connection.

According to an aspect of the method, the packet telephony service isprovided without charge by the organization.

In still another aspect of the method, the telephonic connection iscompleted subsequent to completion of the step of transmitting thenotification over the packet network.

In one aspect of the method, completing the telephonic connectionincludes establishing connectivity with a public switched telephonenetwork.

According to an additional aspect of the method, the notificationincludes multimedia data directed to a computer of the individual.

According to aspect of the method, the organization is a commercialorganization, and the individuals are customers of the organization.

According to a further aspect of the method, the profiles reflectpurchases made respectively by the individuals from the organization.

According to yet another aspect of the method, the packet telephonyservice is provided by a VoIP service provider outside the organization,and the organization pays the VoIP service provider to provide thepacket telephony service to the individuals.

An embodiment of the invention provides a method of synchronizedcommunications, which is carried out by receiving a request from acaller via a packet-switched communications network to establish atelephonic connection with a callee, thereafter instructing a contentprovider to transmit a notification to the caller via the network, andcompleting the telephonic connection.

Another aspect of the method includes accessing a database havingdescriptive information relating to the caller, and composing thenotification responsively to the descriptive information.

Still another aspect of the method includes activating a search engineto obtain descriptive information relating to the caller, and composingthe notification responsively to the descriptive information.

An embodiment of the invention provides a computer software product forproviding synchronized communications, including a computer-readablemedium in which computer program instructions are stored, whichinstructions, when read by a computer, cause the computer to receive arequest from a caller via a packet-switched communications network, toestablish a telephonic connection with a callee, thereafter to instructa content provider to transmit a notification to the caller via thenetwork, and to complete the telephonic connection.

An embodiment of the invention provides a communications system ofsynchronized communications, including a proxy server operative forreceiving a request from a caller via a packet-switched communicationsnetwork to establish a telephonic connection with a callee, and a mediaserver connected to the network, wherein the proxy server is operativefor instructing the media server to transmit a notification to thecaller via the network, and for completing the telephonic connection.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present invention, reference is madeto the detailed description of the invention, by way of example, whichis to be read in conjunction with the following drawings, wherein likeelements are given like reference numerals, and wherein:

FIG. 1 is a block diagram of a system for communication via synchronizedtelephone and data streams, in accordance with a disclosed embodiment ofthe invention;

FIG. 2 is a flow chart illustrating a method of communication viasynchronized telephone and data streams, in accordance with a disclosedembodiment of the invention;

FIG. 3 is a block diagram of a system for communication via synchronizedtelephone and data streams, in accordance with an alternate embodimentof the invention; and

FIG. 4 is a block diagram of a system for communication via synchronizedtelephone and data streams, in accordance with an alternate embodimentof the invention.

DETAILED DESCRIPTION OF THE INVENTION

In the following description, numerous specific details are set forth inorder to provide a thorough understanding of the present invention. Itwill be apparent to one skilled in the art, however, that the presentinvention may be practiced without these specific details. In otherinstances, well-known circuits, control logic, and the details ofcomputer program instructions for conventional algorithms and processeshave not been shown in detail in order not to obscure the presentinvention unnecessarily.

Software programming code, which embodies aspects of the presentinvention, is typically maintained in permanent storage, such as acomputer readable medium. In a client-server environment, such softwareprogramming code may be stored on a client or a server. The softwareprogramming code may be embodied on any of a variety of known media foruse with a data processing system. This includes, but is not limited to,magnetic and optical storage devices such as disk drives, magnetic tape,compact discs (CD's), digital video discs (DVD's), and computerinstruction signals embodied in a transmission medium with or without acarrier wave upon which the signals are modulated. For example, thetransmission medium may include a communications network, such as theInternet. In addition, while the invention may be embodied in computersoftware, the functions necessary to implement the invention mayalternatively be embodied in part or in whole using hardware componentssuch as application-specific integrated circuits or other hardware, orsome combination of hardware components and software.

System Architecture.

Turning now to the drawings, reference is initially made to FIG. 1,which is a block diagram of a system 10 for communication viasynchronized telephone and data streams, in accordance with a disclosedembodiment of the invention. The system 10 and its operation are oftenexplained with reference to the SIP protocol. However, this isexemplary, and those skilled in the art will be able to practice theinvention mutatis mutandis using other communications protocols, such asthe above-noted ITU-T H.323 protocol or peer-to-peer protocols. Theinvention is sometimes disclosed with reference to advertising. However,its principles are applicable to many forms of communication whereinformation directed to a client can be personalized or targeted, e.g.,a community of church members or a school group. In such groups, acommon denominator of mutual interest provides sufficient incentive tofocus the content presented to the group.

The system 10 supports any number of customers concurrently, representedby a customer 12, who has a telephone instrument 14. The telephoneinstrument 14, which is typically an analog telephone, is connected toan adapter 16, shown as a USB dongle that plugs into a computer 18. Theadapter 16 is integrated with software running on the computer 18, whichis capable of placing telephone calls using an appropriate protocol thatsupports a packet telephony service. The protocol may be the above-notedSession Initiation Protocol. The computer 18 is connected to a datanetwork, which is typically a packet-switched network, e.g., theInternet. When the customer 12 places a call by dialing a number on thetelephone instrument 14, the computer 18 is triggered, such thatsignaling flows from the computer 18 to a SIP proxy server 20 locatedsomewhere on the data network. Often, when the customer 12 has dialed anumber that could be reached via the PSTN, the call flows through asignaling gateway 22 that establishes connectivity between VoIP and astandard telephone protocol, e.g., the well-known ITU Signaling System 7(SS7) protocol. The call then continues onward to terminate on a PSTN24, ultimately reaching a callee or recipient 26, which is connected tothe PSTN 24. The recipient 26 typically has a conventional analogtelephone instrument, but could employ other known telephonetechnologies connectable to the PSTN 24, for example the recipient'stelephone could be digital device, such as a cellular telephone.Alternatively, the call could be directed to a VoIP recipient 28configured to communicate using the SIP protocol, in which case thegateway 22 and the PSTN 24 are not included in the call's path. In thecase of conference calls, in which there are a plurality of recipients,many combinations of PSTN and VoIP recipients may be reached byappropriate directives from the proxy server 20.

As is explained in further detail hereinbelow, during an interval thatincludes at least a portion of the post-dial delay, insertion of anotification, e.g., an advertisement from a content provider, shown as amedia server 30, occurs. The media server 30 is connected in the datanetwork. Indeed, the media server 30 may be a logical division of theproxy server 20, both being integrated in a common physical unit. Themedia server 30 may insert a voice stream or a multimedia stream thatcontains the notification or advertisement.

Typically, the packet telephony service provided by the system 10 issupported by a sponsor, such as a merchant, who maintains profiles ofits customers. The packet telephony service is normally provided by aVoIP service provider outside said organization, which is paid by themerchant for providing the packet telephony service to the customers.The media server 30 is controlled by the sponsoring merchant. Preferredcustomers, e.g., the customer 12, are then provided with suitableequipment by the merchant, such as the adapter 16, to access the proxyserver 20 and exploit the packet telephony service at reduced cost or atno cost. The advertising messages produced by the media server 30 arethen tailored to the profile of the particular customer using the packettelephony service.

In some embodiments, the call flow is interrupted until completion ofthe notification from the media server 30 before being allowed toproceed to the gateway 22 (or to the recipient 28). In otherembodiments, the proxy server 20 simply monitors the progress of sessioninitiation, and need not delay call setup. For example, when thecustomer 12 has contracted for a particular QoS, the notification fromthe media server 30 may be required to terminate on completion of callsetup, or alternatively after a predetermined time interval has expired,in order not to violate the agreement.

Operation.

Reference is now made to FIG. 2, which is a flow chart illustrating amethod of communication via synchronized telephone and data streams, inaccordance with a disclosed embodiment of the invention. In conventionalSIP notation, a message comprises a human readable descriptor known as a“reason-phrase” and an identification number, the latter being readilydecodable by a machine.

The following types of possible responses are used in SIP and generatedby participants in the transactions shown in FIG. 2, where “xx”represents a numerical identifier that is assigned in the above-notedRFC 3261:

-   -   1xx-Informational Responses;    -   2xx-Successful Responses;    -   3xx-Redirection Responses;    -   4xx-Client Failure Responses;    -   5xx-Server Failure Responses; and    -   6xx-Global Failure Responses.

A typical session is initiated by the customer 12, who is referred to inthe context of FIG. 2 as a SIP client 32, which transmits an Invitemessage to the proxy server 20 at a step 34 of an event-driven timeline36. The proxy server 20, which is provided with suitable software forexecuting the functions described herein, responds with a 183 progressmessage at step 38. This is an informational response used to conveyinformation about the progress of the call. Various components (notshown)) of the message, e.g., the reason-phrase, header fields, andmessage body could communicate additional details about the callprogress. The message causes the SIP client 32 to listen for anotification or advertisement.

Next, at step 40, the proxy server 20 communicates an INVITE message tothe media server 30. The purpose of this message is to instruct themedia server 30 to transmit a notification or advertisement to the SIPclient 32 during pendency of the call setup, as described above.Information regarding the profile of the client may be communicated inthe invitation, for example a link to a database 42 of customer profilesthat are accessible to the media server 30. Typically, the media server30 and the database 42 are both maintained by the merchant who providesor sponsors VoIP services to the SIP client 32. Additionally oralternatively, the profile of the client may be communicated to theproxy server 20.

Next, at step 44, the media server 30 begins transmitting thenotification or content to the SIP client 32 using a voice stream, orusing known multimedia transmission techniques, depending on theconfiguration of the SIP client 32. The transmitted content may becomposed according to the information about the SIP client 32 obtainedfrom the database 42 or otherwise. This transmission may continue duringthe remainder of the session initiation process. In one embodiment ofstep 44, content is streamed to the SIP client 32 using Real TimeStreaming Protocol (RTSP) in place of the conventional ringtone ornetwork announcement. RTSP is described in IETF RFC 2326, and is similarto ITU Standard H.225.0, noted above. It provides a data delivery formatthat can be employed by other communications protocols.

Next, at step 46, the proxy server 20 continues with the call setup bysending an INVITE message to the gateway 22. This step may be delayeduntil completion of the transmission begun in step 44. Alternatively, itmay be performed concurrently with the transmission.

Next, at step 48, the gateway 22 alerts the PSTN 24 using SS7 to set upthe call. Then, at step 50, the gateway 22 notifies the proxy server 20of the session progress by communicating a message 183 Session Progress,or a message 180 RINGING.

When the telephone connected to the PSTN 24 is picked up, at step 52,the gateway 22 communicates a success message 200 OK to the proxy server20.

Next, at step 54, the proxy server 20 forwards the message 200 OK, alongwith any requested media addresses and information that may havedeveloped from client interaction during the transmission begun in step44, to the SIP client 32.

Next, at step 56, the SIP client 32 transmits an ACK message to theproxy server 20, acknowledging the call setup. The proxy server 20forwards the ACK message to the gateway 22 at step 58.

At final step 60 the call has been set up, and information flows betweenthe SIP client 32 and the gateway 22 directly, and out to the PSTN 24.The information can be communicated using RTSP, or other protocols, orcan be simple voice communication.

It will be understood that when the recipient of the call is another SIPclient or another type of VoIP client, the PSTN 24 is not accessed bythe gateway 22. In some cases, even the gateway 22 may be bypassed, andthe recipient contacted directly by the proxy server 20.

Alternate Embodiment 1

Reference is now made to FIG. 3, which is a block diagram of a system 62for communication via synchronized telephone and data streams, inaccordance with an alternate embodiment of the invention. In addition tothe call flow, another parallel channel may be implemented to pushdetailed advertising information, coupons, or other relevant informationin coordination with the advertisement or other content played over thevoice channel. The system 62 is similar to the system 10 (FIG. 1).However, it includes a web server 64, which is connected to the mediaserver 30. The media server 30 and the web server 64 may be remote fromone another, or co-located in the same machine. During step 44 (FIG. 2),the web server 64 feeds an advertising page to a browser 66 executing inthe computer 18 of the customer 12. Thus, for example, if the customer12 is a regular purchaser of quality wines, the advertisement voicestream might say, “Look at your computer screen now to see our specialoffer on premium wines,” while a screen 68 displays the bottles that areavailable and their prices. The screen 68 could even include a “Clickhere to purchase” link. By synchronizing the voice advertisement with amore detailed advertisement pushed to the computer 18, the duration ofthe advertisement can be decreased while maintaining or even increasingthe total effectiveness of the customer's interaction with theadvertisement information.

Alternate Embodiment 2

Reference is now made to FIG. 4, which is a block diagram of a system 70for communication via synchronized telephone and data streams, inaccordance with an alternate embodiment of the invention. In the system70, an integrated unit 72 employs a search engine 74 that is linked tothe proxy server 20, the media server 30, optionally to the web server64, and to the Internet in general. The search engine 74, which iscapable of searching the Internet, a private network, or data containedin an enterprise, enhances the ability of the unit 72 to gatherinformation about the customer 12, in order to more effectively composea targeted advertisement or notification. The unit 72 thus constitutesan effective advertising engine.

It will be appreciated by persons skilled in the art that the presentinvention is not limited to what has been particularly shown anddescribed hereinabove. Rather, the scope of the present inventionincludes both combinations and sub-combinations of the various featuresdescribed hereinabove, as well as variations and modifications thereofthat are not in the prior art, which would occur to persons skilled inthe art upon reading the foregoing description.

The invention claimed is:
 1. A method for targeted advertising,comprising: providing a first party with access to a packet telephonyservice; receiving a request from the first party to establish atelephonic connection with a second party over a packet network usingsaid packet telephony service; in response to said request, transmittingover said packet network to the first party an audio notificationprovided by a third party, the audio notification being targetedaccording to a profile of the first party; causing a message that islinked to the audio notification to be displayed on a display screenused by the first party while the audio notification is played to thefirst party; and completing said telephonic connection upon completionof playing the audio notification.
 2. The method of claim 1, furthercomprising the steps of: providing the third party with information thatcan be used to identify the first party; and receiving from the thirdparty the audio notification that is to be transmitted to the firstparty.
 3. The method of claim 1, wherein the audio notification istargeted according to a profile maintained by the third party.
 4. Themethod of claim 1, wherein the audio notification is targeted accordingto a profile maintained by the packet telephony service.
 5. The methodof claim 1, wherein the step of completing the telephonic connection isnot performed until after the entire audio notification has beentransmitted to the first party.
 6. The method of claim 1, wherein themessage comprises a coupon that can be used by the first party.
 7. Themethod of claim 1, wherein the audio notification comprises multimediadata that is transmitted to a computer of the first party.
 8. A methodof synchronized communications, comprising: receiving a request from afirst party at a packet telephony server via a packet-switchedcommunications network, the request indicating that the first partywishes to establish a telephonic connection with a second party;instructing a content provider to transmit an audio notification and amessage that is linked to the audio notification to the first party viathe network, the audio notification configured to be played to the firstparty while the message is displayed on a display screen used by thefirst party; and completing said telephonic connection upon completionof playing the audio notification.
 9. The method of claim 8, wherein theinstructing step comprises providing information to the content providerthat can be used to identify the first party.
 10. The method of claim 8,wherein the step of completing the telephonic connection is notperformed until after the content provider has finished transmitting anaudio notification to the first party.
 11. The method of claim 8,wherein the step of completing the telephonic connection is performedafter a predetermined time period has expired after the instructing stepis performed, or after the content provider has finished transmitting anaudio notification to the first party, whichever occurs first.
 12. Themethod of claim 8, wherein the instructing step comprises instructing acontent provider to transmit multimedia data to a computer of the firstparty, the multimedia data including an audio notification.
 13. Themethod of claim 8, wherein the instructing step comprises instructing acontent provider to transmit both an audio notification to an audiodevice of the first party and text or graphics to a display screen ofthe first party.
 14. The method of claim 8, wherein the instructing stepcomprises instructing a content provider to transmit multimedia data toa computer of the first party.
 15. The method of claim 8, wherein theinstructing step comprises instructing a content provider to transmit anaudio notification to a telephony device of the first party and a textor graphics based coupon to a display screen of the first party.
 16. Themethod of claim 8, further comprising obtaining information about thefirst party, wherein the instructing step comprises instructing thecontent provider to transmit an audio notification to the first partythat is based on the obtained information about the first party.
 17. Amethod for targeted advertising, comprising: providing a first partywith access to a packet telephony service; receiving a request from thefirst party to establish a telephonic connection with a second partyover a packet network using said packet telephony service; in responseto said request, transmitting over said packet network to the firstparty an audio notification provided by a third party, the audionotification being targeted according to a profile of the first party;and completing said telephonic connection after the entire audionotification has been played to the first party.